提交 96db271a 编写于 作者: G Greg Ungerer 提交者: Linus Torvalds

m68knommu: platform setup for 5307 ColdFire parts

Switch to platform style configuration for 5307 ColdFire parts.
Initial support is for the UARTs. DMA support moved to common code
for all ColdFire parts.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
上级 eb49e907
...@@ -13,11 +13,11 @@ ...@@ -13,11 +13,11 @@
#include <linux/param.h> #include <linux/param.h>
#include <linux/init.h> #include <linux/init.h>
#include <linux/interrupt.h> #include <linux/interrupt.h>
#include <asm/dma.h> #include <linux/io.h>
#include <asm/machdep.h> #include <asm/machdep.h>
#include <asm/coldfire.h> #include <asm/coldfire.h>
#include <asm/mcfsim.h> #include <asm/mcfsim.h>
#include <asm/mcfdma.h> #include <asm/mcfuart.h>
#include <asm/mcfwdebug.h> #include <asm/mcfwdebug.h>
/***************************************************************************/ /***************************************************************************/
...@@ -38,17 +38,51 @@ unsigned char ledbank = 0xff; ...@@ -38,17 +38,51 @@ unsigned char ledbank = 0xff;
/***************************************************************************/ /***************************************************************************/
/* static struct mcf_platform_uart m5307_uart_platform[] = {
* DMA channel base address table. {
*/ .mapbase = MCF_MBAR + MCFUART_BASE1,
unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = { .irq = 73,
MCF_MBAR + MCFDMA_BASE0, },
MCF_MBAR + MCFDMA_BASE1, {
MCF_MBAR + MCFDMA_BASE2, .mapbase = MCF_MBAR + MCFUART_BASE2,
MCF_MBAR + MCFDMA_BASE3, .irq = 74,
},
{ },
};
static struct platform_device m5307_uart = {
.name = "mcfuart",
.id = 0,
.dev.platform_data = m5307_uart_platform,
}; };
unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS]; static struct platform_device *m5307_devices[] __initdata = {
&m5307_uart,
};
/***************************************************************************/
static void __init m5307_uart_init_line(int line, int irq)
{
if (line == 0) {
writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR);
writeb(irq, MCFUART_BASE1 + MCFUART_UIVR);
mcf_setimr(mcf_getimr() & ~MCFSIM_IMR_UART1);
} else if (line == 1) {
writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR);
writeb(irq, MCFUART_BASE2 + MCFUART_UIVR);
mcf_setimr(mcf_getimr() & ~MCFSIM_IMR_UART2);
}
}
static void __init m5307_uarts_init(void)
{
const int nrlines = ARRAY_SIZE(m5307_uart_platform);
int line;
for (line = 0; (line < nrlines); line++)
m5307_uart_init_line(line, m5307_uart_platform[line].irq);
}
/***************************************************************************/ /***************************************************************************/
...@@ -99,7 +133,7 @@ int mcf_timerirqpending(int timer) ...@@ -99,7 +133,7 @@ int mcf_timerirqpending(int timer)
/***************************************************************************/ /***************************************************************************/
void config_BSP(char *commandp, int size) void __init config_BSP(char *commandp, int size)
{ {
mcf_setimr(MCFSIM_IMR_MASKALL); mcf_setimr(MCFSIM_IMR_MASKALL);
...@@ -117,7 +151,7 @@ void config_BSP(char *commandp, int size) ...@@ -117,7 +151,7 @@ void config_BSP(char *commandp, int size)
mach_reset = coldfire_reset; mach_reset = coldfire_reset;
#ifdef MCF_BDM_DISABLE #ifdef CONFIG_BDM_DISABLE
/* /*
* Disable the BDM clocking. This also turns off most of the rest of * Disable the BDM clocking. This also turns off most of the rest of
* the BDM device. This is good for EMC reasons. This option is not * the BDM device. This is good for EMC reasons. This option is not
...@@ -128,3 +162,14 @@ void config_BSP(char *commandp, int size) ...@@ -128,3 +162,14 @@ void config_BSP(char *commandp, int size)
} }
/***************************************************************************/ /***************************************************************************/
static int __init init_BSP(void)
{
m5307_uarts_init();
platform_add_devices(m5307_devices, ARRAY_SIZE(m5307_devices));
return 0;
}
arch_initcall(init_BSP);
/***************************************************************************/
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